US Full Size Pickups
Discussion
shirt said:
Jeez! Nope ... I suspect I'm going to be very gentle! 
shirt said:
Hey Shirt,Got a question for you if you don't mind
Having never driven or owned a lifted truck before, I wondered if it's normal for it to make the odd noise when turning on full lock, particularly if going over a curb at the same time? It's like a mild twang.
Also, on the motorway there's a fair bit of tyre noise as expected, but it's also slightly 'bimbly' as my other half calls it! What she means is that it feels like it's running on constant tiny raised strips on the road, even though it's on smooth tarmac. Is that also to be expected?
Ta,
J.
yorky500 said:
Could be you are not used to running a car with such "nobbly" tyres OR the tyres have been over inflated.
Hi mate ... yes, I'm not at all used to it! I had a look at the pressures and they're at 42psi. They're 295/60R20s so I'm looking into what they should be...Cheers,
J.
jezzaaa said:
yorky500 said:
I am running 275/55/20 on the silverado and I am at 33psi.
Oops - so maybe mine are way over pressured!!Was that tyre pressure measured when the tyres were cold or hot?
yorky500 said:
Could be. I spoke a guy at Robbie's Motorsport who told me that they usually recommend 35-36psi for normal road use.
Was that tyre pressure measured when the tyres were cold or hot?
Hi ya ... they were warm...I'd just run it down the road to the ADNOC station to check it. I will have a look this morning on my gauge before it goes anywhere to get a cold reading.Was that tyre pressure measured when the tyres were cold or hot?
firstly, check what tyres are fitted. a truck rated tyre will take up to 50-60psi. last time i went to a tyre garage a local was having his fitted at 50psi and reckoned it rode ok.experiment with pressures but be aware that you will have greater wear on a softer tyre. this also depends on tread pattern. my tyres [33x12.5 r15] are rated to 35psi max, i go with 32 warm
next, get a proper geo alignment done. only place i'd start for this would be MSW. speak to robbie. if he can't help ask for his recommendation, you need someone au fait with thrust angles, effect of wide tyres/spacers etc. most of the 4x4 garages have a mixed reputation and are simply bolt on merchants. a generic tyre garage stuggle even to do tracking. MSW's reputation is spotless and robbie is a fanatic.
next up i'd join a US F150 forum, there seems to be a few. post up what exact kit yours has and ask for tips for smoother on road performance. heavy duty everything and a top spec single or double steering damper is a good place to start.
thirdly, just get used to it! wide tyres will scrub on full lock, twangs and noises are commonplace. US trucks are fairly agricultural, you have a leaf sprung axle FFS! yours is an OEM lift so should have been done right. on the jeep, OEM wear parts have a better rep. than aftermarket. still, you must keep on top of things. the dust and heat isn't kind to bearings, rod ends, bushings etc. and any wear is magnified by the fact that your unsprung weight is absolutely massive! have you lifted a wheel yet? massive effort just to change a tyre, believe me!
enjoy it, get used to it and see how far you can push it i don't recommend cornering on 3 wheels but you can lean a fair way and aftermarket shocks can be a revelation. also nothing better than finding your own way around traffic jams, taking short cuts across the sand, and watching traffic part as if Moses was at the wheel.
next, get a proper geo alignment done. only place i'd start for this would be MSW. speak to robbie. if he can't help ask for his recommendation, you need someone au fait with thrust angles, effect of wide tyres/spacers etc. most of the 4x4 garages have a mixed reputation and are simply bolt on merchants. a generic tyre garage stuggle even to do tracking. MSW's reputation is spotless and robbie is a fanatic.
next up i'd join a US F150 forum, there seems to be a few. post up what exact kit yours has and ask for tips for smoother on road performance. heavy duty everything and a top spec single or double steering damper is a good place to start.
thirdly, just get used to it! wide tyres will scrub on full lock, twangs and noises are commonplace. US trucks are fairly agricultural, you have a leaf sprung axle FFS! yours is an OEM lift so should have been done right. on the jeep, OEM wear parts have a better rep. than aftermarket. still, you must keep on top of things. the dust and heat isn't kind to bearings, rod ends, bushings etc. and any wear is magnified by the fact that your unsprung weight is absolutely massive! have you lifted a wheel yet? massive effort just to change a tyre, believe me!
enjoy it, get used to it and see how far you can push it
i don't recommend cornering on 3 wheels but you can lean a fair way and aftermarket shocks can be a revelation. also nothing better than finding your own way around traffic jams, taking short cuts across the sand, and watching traffic part as if Moses was at the wheel.Edited by shirt on Sunday 23 June 22:47
shirt said:
firstly, check what tyres are fitted. a truck rated tyre will take up to 50-60psi. last time i went to a tyre garage a local was having his fitted at 50psi and reckoned it rode ok.experiment with pressures but be aware that you will have greater wear on a softer tyre. this also depends on tread pattern. my tyres [33x12.5 r15] are rated to 35psi max, i go with 32 warm
next, get a proper geo alignment done. only place i'd start for this would be MSW. speak to robbie. if he can't help ask for his recommendation, you need someone au fait with thrust angles, effect of wide tyres/spacers etc. most of the 4x4 garages have a mixed reputation and are simply bolt on merchants. a generic tyre garage stuggle even to do tracking. MSW's reputation is spotless and robbie is a fanatic.
next up i'd join a US F150 forum, there seems to be a few. post up what exact kit yours has and ask for tips for smoother on road performance. heavy duty everything and a top spec single or double steering damper is a good place to start.
thirdly, just get used to it! wide tyres will scrub on full lock, twangs and noises are commonplace. US trucks are fairly agricultural, you have a leaf sprung axle FFS! yours is an OEM lift so should have been done right. on the jeep, OEM wear parts have a better rep. than aftermarket. still, you must keep on top of things. the dust and heat isn't kind to bearings, rod ends, bushings etc. and any wear is magnified by the fact that your unsprung weight is absolutely massive! have you lifted a wheel yet? massive effort just to change a tyre, believe me!
enjoy it, get used to it and see how far you can push it i don't recommend cornering on 3 wheels but you can lean a fair way and aftermarket shocks can be a revelation. also nothing better than finding your own way around traffic jams, taking short cuts across the sand, and watching traffic part as if Moses was at the wheel.
Thanks Shirt, I will look into these things...great advice! next, get a proper geo alignment done. only place i'd start for this would be MSW. speak to robbie. if he can't help ask for his recommendation, you need someone au fait with thrust angles, effect of wide tyres/spacers etc. most of the 4x4 garages have a mixed reputation and are simply bolt on merchants. a generic tyre garage stuggle even to do tracking. MSW's reputation is spotless and robbie is a fanatic.
next up i'd join a US F150 forum, there seems to be a few. post up what exact kit yours has and ask for tips for smoother on road performance. heavy duty everything and a top spec single or double steering damper is a good place to start.
thirdly, just get used to it! wide tyres will scrub on full lock, twangs and noises are commonplace. US trucks are fairly agricultural, you have a leaf sprung axle FFS! yours is an OEM lift so should have been done right. on the jeep, OEM wear parts have a better rep. than aftermarket. still, you must keep on top of things. the dust and heat isn't kind to bearings, rod ends, bushings etc. and any wear is magnified by the fact that your unsprung weight is absolutely massive! have you lifted a wheel yet? massive effort just to change a tyre, believe me!
enjoy it, get used to it and see how far you can push it
i don't recommend cornering on 3 wheels but you can lean a fair way and aftermarket shocks can be a revelation. also nothing better than finding your own way around traffic jams, taking short cuts across the sand, and watching traffic part as if Moses was at the wheel.Edited by shirt on Sunday 23 June 22:47
I have lifted a wheel, yes...I ordered a new one from the US so I had a proper spare. With the tyre, it weighs nearly 50kg! I'm glad twangs etc are normal. It feels good on the road and only twangs on full lock when driving up curbs and stuff. So I'm sure it's fine as you say.My tyres are Nitto terra Grapplers...LT295/60R20s. According to a few web sites, max PSI is 80. should I be putting them up near the max? That sounds like a lot! I'm running it at 40PSI at the moment.
Thanks again,
J.
Edited by jezzaaa on Monday 24th June 10:47
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